The widespread stratigraphic sequences, from Precambrian to Cenozoic have been affected by metasomatic and thermal- metamorphic events of the Pliocene age by the Alam- Kuh alkali-granitic intrusion. Skarnification is the main metasomatic type in the studied area with 1-2km in extent. This intruded alkali-granite is probably related to syn-collision and post collision tectonic regimes as A-type ...

Sefidkuh Granitoid is located west of Nehbandan (South Khorasan Province) east of Lut Block. Compositionally, this granitoid ranges from granite (monzo and synogranite), to granodiorite and tonalite. It has microgranular felsic enclaves with minerals similar to the host body. Major minerals are quartz, plagioclase, microcline, orthoclase, and biotite which were analyzed using electron probe mic...

The Jebale-Barez plutonic complex (JBPC) is composed of granitic rocks and located in the E-NE of Jiroft in the SE part of Kerman Province. It is mainly consists of granodiorite but alkali-feldspar granite, granite, quartz-syenite and quartz-diorite can be observed in the region. The U-Th ratio in granitoids was used for petrogenetic studies. In this point of view, the JBPC has U-Th ratio lower...

The Band-e-Hezarchah granitoids mainly include alkali granite and granite. that intruded in Late Neoproterozoic metamorphic rocks. Orthoclase, microcline, plagioclase, quartz and biotite are the main rock-forming minerals. Plagioclase is mostly albite and oligoclase with Si = 2.57-2.7 a.p.f.u. and An0.4–12.6. Biotite is mostly siderophyllite, with Si = 4.30-6.22 a.p.f.u. and XMg= 0.025 - 0.859....

The Siyahmansour area is located between longitude 370 46َ 07" to 370 50َ 19" N and latitude 470 53ً 13" to 470 58َ 22" E in northeastern town of Miyaneh Exposure of different igneous rocks in the studied area including Eocene to Miocene volcanic rocks, granitoids and diorites. The granitoids are different including muscovite granites and granite-granodiorite. The muscovite granites are intruded in...

The Shah Jahan Granodiorite and granite rocks are part of the Ordubad granitoid body that outcrop in 10 km south of Aras River. These rocks are located in the Alborz-Azerbaijan zone in NW of Iran. The Granodiorite Pluton has granular texture; containing minerals are plagioclase (andesine), alkali feldspar (orthoclase), amphibole (magnesio-hornblende) biotite, titanite and magnetite. Alkali feld...